"I think so." "Experts think inflation will rise." "I thought you'd left." English wheels out one verb, think, for all three, but the mental acts are different — a soft hunch, a reasoned position, and a mistaken assumption — and Chinese assigns a different verb to each. 觉得 is a subjective feeling or impression, tentative and everyday, and it uniquely doubles as physical "feel." 认为 is a considered judgment, firmer and more formal, the verb of arguments and expert opinion. 以为 is the tricky one: it means you thought something that turned out to be false. Reach for 以为 by mistake and you'll accidentally announce that your own opinion was wrong. This page is the decision grid; the finer split between 认为 and 以为 gets its own treatment on 认为 vs 以为, and 觉得's full range on 觉得 to feel/think.
The three-way grid
| Verb | Kind of "think" | Strength / register | Signature |
|---|---|---|---|
| 觉得 (juéde) | impression / feeling | soft, everyday | also physical: 觉得累 |
| 认为 (rènwéi) | considered judgment | firm, formal | arguments, experts, positions |
| 以为 (yǐwéi) | mistaken belief | neutral | implies "…but I was wrong" |
觉得: a soft impression — and physical feelings
觉得 is the default for personal opinion in speech: gentle, tentative, "in my view / it seems to me." It is also the only one of the three that expresses a bodily or emotional sensation — tired, cold, uncomfortable — because it literally means "to feel."
我觉得这家店的味道挺不错的。
wǒ juéde zhè jiā diàn de wèidào tǐng búcuò de
I think this place's food is pretty good. (informal) — a soft impression.
你觉得我们该走哪条路？
nǐ juéde wǒmen gāi zǒu nǎ tiáo lù?
Which way do you think we should go? (informal) — asking for an impression.
我觉得有点冷，把窗户关一下吧。
wǒ juéde yǒudiǎn lěng, bǎ chuānghu guān yíxià ba
I feel a bit cold — close the window, would you? (informal) — physical sensation, which only 觉得 covers.
认为: a considered judgment, more formal
认为 states a position you've weighed — firmer than 觉得 and at home in formal, written, or argumentative contexts: expert opinion, editorials, reasoned claims. It takes a clause, never a bare physical state.
很多专家认为房价还会继续下降。
hěnduō zhuānjiā rènwéi fángjià hái huì jìxù xiàjiàng
Many experts hold that housing prices will keep falling. (formal) — considered judgment.
我认为这个方案有很大的问题，必须重新讨论。
wǒ rènwéi zhège fāng'àn yǒu hěn dà de wèntí, bìxū chóngxīn tǎolùn
I hold that this plan has serious problems and must be reconsidered. (formal) — a firm stance.
以为: what you thought — and got wrong
以为 marks a belief that reality has since overturned. The sentence almost always implies, and often spells out, the correction: I assumed X, but in fact not-X.
我以为今天是周六，结果还得上班。
wǒ yǐwéi jīntiān shì zhōuliù, jiéguǒ hái děi shàngbān
I thought today was Saturday — turns out I still have work. (informal) — belief now corrected.
我一直以为你是南方人，原来你是北京的。
wǒ yìzhí yǐwéi nǐ shì nánfāng rén, yuánlái nǐ shì Běijīng de
I'd always thought you were a southerner — turns out you're from Beijing. (informal)
对不起，我以为你不来了，就先走了。
duìbuqǐ, wǒ yǐwéi nǐ bù lái le, jiù xiān zǒu le
Sorry — I thought you weren't coming, so I left first. (informal) — the assumption was mistaken.
Soft vs firm: 觉得 next to 认为
觉得 and 认为 can both introduce the same clause; the difference is strength and register. 我觉得他会来 is a hunch; 我认为他一定会来 is a stated position. In casual conversation you'll lean on 觉得 (and the hedging fillers on spoken stance fillers); in an essay or a debate, 认为.
我觉得他会来，但我不敢肯定。
wǒ juéde tā huì lái, dàn wǒ bù gǎn kěndìng
I think he'll come, but I'm not certain. (informal) — tentative, so 觉得.
报告认为，这一趋势短期内不会改变。
bàogào rènwéi, zhè yì qūshì duǎnqī nèi bú huì gǎibiàn
The report holds that this trend won't change in the short term. (formal) — an institutional judgment.
Common Mistakes
1. Using 以为 for an opinion that's still correct. 以为 announces you were wrong; for a current, held view use 觉得 or 认为.
❌ 我以为这个电影很好看。
This means 'I thought it was good (but it wasn't)'; for a genuine opinion say 我觉得这个电影很好看。
✅ 我觉得这个电影很好看，你也去看看吧。
wǒ juéde zhège diànyǐng hěn hǎokàn, nǐ yě qù kànkan ba
I think this movie's great — go see it too. — 觉得 for a real opinion.
2. Using 认为 or 以为 for a physical feeling. Only 觉得 covers "feel tired / cold / hungry."
❌ 我认为很累，想休息一下。
Wrong — a bodily state needs 觉得: 我觉得很累。
✅ 我觉得很累，想休息一下。
wǒ juéde hěn lèi, xiǎng xiūxi yíxià
I feel really tired and want to rest a bit. — 觉得 for the sensation.
3. Using formal 认为 in casual small talk. For everyday chat it sounds stiff and lecture-like; 觉得 fits.
❌ 我认为这个冰淇淋很好吃。
Too stiff for chatting about ice cream — say 我觉得这个冰淇淋很好吃。
✅ 我觉得这个冰淇淋很好吃，你尝一口。
wǒ juéde zhège bīngqílín hěn hǎochī, nǐ cháng yì kǒu
I think this ice cream's delicious — have a taste. — 觉得 for casual opinion.
4. Using these for "think about / ponder." 觉得/认为/以为 all mean "hold a view," not "turn something over"; the mental process is 想 or 考虑.
❌ 让我觉得一下这个问题。
Wrong — to mull it over say 让我想一下 / 让我考虑一下这个问题。
✅ 让我想一下，明天给你答复。
ràng wǒ xiǎng yíxià, míngtiān gěi nǐ dáfù
Let me think it over — I'll give you an answer tomorrow. — 想 for the act of thinking.
Key Takeaways
- 觉得 = a soft, subjective impression (我觉得不错), and the only one that also means physically feel (觉得累).
- 认为 = a firmer, more formal considered judgment (专家认为…) — arguments, experts, essays.
- 以为 = a belief that turned out wrong (我以为今天周六); using it implies you were mistaken.
- Don't use 以为 for a view that's still true, and don't use 认为/以为 for bodily feelings.
- For "ponder / think it over," none of these works — use 想 or 考虑.
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- 你知道吗/你看/我觉得 — Spoken Stance FillersHSK 3 — 你知道吗 / 你看 / 我觉得 (nǐ zhīdào ma / nǐ kàn / wǒ juéde) are conversation-management tags, not literal questions or perception verbs: 你看 invites agreement, 你知道吗 keeps the listener with you, 我觉得 hedges an opinion as merely personal, and 我跟你说 grabs the floor for a point.